7、ytracktrafficplanningisYibincityregionalrangewithintracktrafficsystemofonceintegration,andcitytracktrafficalsoisYibinCityCityintegratedtracktrafficsystemintheofpart,foraccurategraspcitytracktrafficresearchofobjectD.以上说法都对14. 一般情况下,居民消费倾向总是( )A.为基本的消费支出 B.